Filed Feb. 13, 2014

Serial No. 86193385

Registered June 20, 2017

Registration No. 5,228,431

Interlocutory Attorney ELIZABETH WINTER

Class Scientific instruments and apparatus, namely, layer analysis instruments, calculators, vacuum meters, electric conductance meters, frequency meters, photometers, light detectors, material testing machines for testing the composition of gems and pearls; diamond testers; pearl comparison sets, dichroscopes, polariscopes, proportion scopes, spectrometers, gold testers; laboratory equipment, namely, calipers and digital calipers; loupes, imaging machines for use in testing the composition of gems and pearls; microscopes; scales; refractometers, and spectroscopes; measuring instruments for measuring light, weight, volume, mass, diameters, density, clarity, color, cuts, chemical structures of gems and pearls; measuring instruments for measuring the proportions and composition of gems, pearls and jewelry; microscope lamps; laboratory equipment, namely, ultraviolet viewing apparatus for viewing gems and jewelry; light beam projection instruments for use in grading diamonds and gems; optical filters, color filters for apparatus used in testing the color of gems, pearls, and jewelry, and polarizing filters; color testing equipment, namely, color comparators and apparatus for testing the color of gems, pearls and jewelry; ultraviolet and fluorescent testing apparatus for use in testing, examining, grading and evaluating gems, pearls and jewelry; photo-optical instruments for viewing and imaging gems, pearls and jewelry; grading instruments for grading, examining, and testing gems, for grading, examining and testing pearls, and for analyzing jewelry; portable laboratory apparatus for use in measuring, analyzing, grading, examining, testing and evaluating materials, namely, diamonds and other gemstones; portable laboratory apparatus for use in measuring, analyzing, grading, examining, testing and evaluating the characteristics of gems, pearls and jewelry; scientific instruments and apparatus for examining, testing, evaluating and appraising gems, pearls and jewelry; pre-recorded CDs, [ DVDs, videotapes, ] audiotapes featuring educational materials in the field of gemology; 021; 023; 026; 036; 038; 002; 005; 022; 023; 029; 037; 038; 050; 100; 101

Case Type Trademark Service mark